Pete Johanson f85ec7e7a2 SoC: stm32c0 support (#3174)
deps: Use hal_stm32 with stm32c0 USB device fixes.

Pull in ZMK fork of hal_stm32 with USB device driver fixes for stm32c0.

feat: Add nBOOT_SEL bit setup for STM32 G0/C0 targets

Newer STM32 C0 and G0 series SoCs do not by default allow use of the
BOOT0 pin/button to enter the bootloader once something has been flash
to the device, which is a change from previous series, and usually not
what's wanted for keyboards running ZMK. To address this, add some
optional, but default initialization code to check the nBOOT_SEL bit and
override it if necessary to ensure BOOT pin/button functionality.

docs: Extract bootloader config into a dedicated page.

Pull the bootloader intergration options out of the system configuration
page into their own dedicated one.

Co-authored-by: Nicolas Munnich <98408764+nmunnich@users.noreply.github.com>

---------

Co-authored-by: Nicolas Munnich <98408764+nmunnich@users.noreply.github.com>
2026-01-07 18:05:13 -05:00
2026-01-07 18:05:13 -05:00
2026-01-07 18:05:13 -05:00
2025-12-09 19:43:22 -05:00
2021-01-13 20:59:11 -05:00
2020-06-22 05:47:20 -04:00

Zephyr™ Mechanical Keyboard (ZMK) Firmware

Discord Build Contributor Covenant

ZMK Firmware is an open source (MIT) keyboard firmware built on the Zephyr™ Project Real Time Operating System (RTOS). ZMK's goal is to provide a modern, wireless, and powerful firmware free of licensing issues.

Check out the website to learn more: https://zmk.dev/.

You can also come join our ZMK Discord Server.

To review features, check out the feature overview. ZMK is under active development, and new features are listed with the enhancement label in GitHub. Please feel free to add 👍 to the issue description of any requests to upvote the feature.

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